The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2000
Filed:
Mar. 08, 1999
John P Gagliardo, Shrewsbury, MA (US);
Regal Products, Inc., Shrewsbury, MA (US);
Abstract
A fluid proportioning valve meters a flow of secondary fluid into a flow of primary fluid in a predetermined, controllable proportion of secondary fluid to primary fluid and in a predetermined, controlled volume flow of secondary fluid responsive to volume flow of primary fluid. The fluid proportioning valve includes: a housing defining a conduit in operation for flow of secondary fluid from an inlet in communication with a source of secondary fluid towards an outlet in communication with a source of primary fluid; a first valve element disposed within the housing and defining a first valve opening between inlet and outlet; and a second valve element disposed within the housing and defining a second valve opening between inlet and outlet. The first and second valve elements are mounted for relative movement in first and second degrees of motion, the first and second valve openings being in overlapping relationship in at least some position of the first and second valve elements, to permit flow of secondary fluid from the inlet toward the outlet.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile